On Tuesday's part-two of the Real Housewives of Beverly Hills reunion, Lisa VanderPump burst into tears — and her husband Ken Todd spoke angrily — alluding to their bitter falling out with Cedric Martinez.

The couple opens up exclusively in the new Us Weekly (out now) about just what happened with their former "permanent housemate" Martinez.

Even worse? Todd tells Us that Martinez chillingly suggested during the spat that he could get violent. "He said, 'The last time I was this angry, I stabbed my father,'" says Todd, who says he filed a police report after the scary chat.

"I will sue if he sells any stories about me," a heartbroken VanderPump tells Us. "I feel absolutely betrayed."